package com.example.d4;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class D4Application {


    public static void main(String[] args) {
        int res=0;
        for(int i = 0;i <=100;i++){
            if(i%2==0){
                res+=i;
            }
        }
        System.out.println(res);
    }

}
